1、 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2009 by Navistar, Inc. AUGUST 2009 Page 1 of 1 NAVISTAR, INC. CEMS (CORPORATE ENGINEERING MATERIAL SPECI
2、FICATION) NUMBER: CEMS GT-4E TITLE: Taping And Recoating Properties Of Paint CURRENT ISSUE DATE: August 2009 WRITTEN/REVIEWED BY: Materials Engineering APPROVED BY: Materials Engineering SUPERSEDES ISSUE OF: August 2001 PRINTED COPIES OF THIS DOCUMENT MUST BE VERIFIED FOR CURRENT REVISION This speci
3、fication may involve hazardous materials, equipment, and procedures. This specification does not purport to address all of the safety issues associated with its use. The user is responsible to consult appropriate safety and health practices and to determine the applicability of regulatory limits pri
4、or to use. Change Notice: Replaced “International Truck and Engine Corporation” with “Navistar, Inc.” per corporate directive. 1.0 SCOPE This is a method for evaluating the quality of a dry film of paint which has been subjected to taping and recoating. 2.0 MATERIAL 2.0 Bonderite CD-10 or Bonderite
5、958 zinc phosphated steel panel, 100 x 150 mm (4 x 6 inches), available from Advanced Coatings Technologies, 273 Industrial Drive, Hillsdale, Michigan 49242. 2.2 Masking tape with a 8.3 to 11.1 N (30 to 40 ounce) pull. 3.0 PROCEDURE 3.1 Prepare two panels according to the procedure specified for the
6、 applicable grade in Test Method GT-13, Panel Preparation. For Grade -62, dry panels for 24 hours in air at 21 to 27C (70 to 80F) prior to testing. For Grades -32 and -32HS, prepare four panels and dry in still air at 21 to 27C (70 to 80F) one panel for each of the following periods: 3 hours, 8 hour
7、s, 16 hours and 24 hours, prior to testing. 3.2 Cover one-half of the width of each panel using masking tape. 3.3 Recoat all panels using the identical procedure specified in step (1) above except for the drying procedure. Dry the panels for 30 minutes in still air at 21 to 27C (70 to 80F). 3.4 Remo
8、ve the tape from each panel and allow both to dry for an additional 24 hours in still air at 21 to 27C(70 to 80F). 3.5 At the conclusion of this period, examine each panel with the unaided eye. Any evidence of strike-in lift or tape marking on any panel will constitute a failure. 4.0 REPORT Report whether the paint passes or fails this test. Copyright Navistar International Corporation Provided by IHS under license with INTERNNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
